Mitsubishi S4S User Manual

11-8
Chapter 11 TROUBLESHOOTING
Overheating
Low engine oil pressure
Table 11-8 Overheating
Cause Remedies
Cooling sys-
tem
Low coolant level
Check coolant leakage.
Check coolant level. (Refer to P3-3)
Faulty water pump operation Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Faulty thermostat operation Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Faulty radiator operation
Check and clean radiator and radiator filler cap.
(Refer to P8-13)
Control
system
Increase in load
Check fuel injection pump rack stroke.
Check control system.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Basic engine Rapid wear of sliding parts Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Table 11-9 Low engine oil pressure
Cause Remedies
Lubricating
system
Insufficient amount of engine oil
Check amount of engine oil and lubrication system.
(Refer to P3-2)
Faulty engine oil property (viscos-
ity)
Analyze oil property. Use appropriate engine oil.
(Refer to P5-1)
Oil temperature too high
Check coolant system.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Oil filter clogged Inspect and replace oil filter. (Refer to P8-8)
Faulty oil pump operation Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Faulty relief valve operation Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Control
system
Faulty pressure unit operation
Check control system and wire.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Basic engine
Increase in load
Check control system.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Rapid wear of sliding parts Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Increase clearance of sliding part. Consult a dealer of Mitsubishi Heavy Industries, Ltd.

Mitsubishi S4S Specifications

General

Brand	Mitsubishi
Model	S4S
Category	Engine
Language	English